What is this?
MCP (Model Context Protocol) is the open standard that lets AI assistants use external tools. Gantt Chart Maker hosts its own MCP server at https://mcp.ganttchartmaker.app/mcp — so once connected, Claude can work on your charts directly: everything it creates or edits shows up live in the app, on every device, for every collaborator.
You stay in control: Claude signs in as you through standard OAuth, can only reach charts you own or collaborate on, and you can disconnect at any time.
Connect in one minute
claude.ai & Claude Desktop
- Open Customize → Connectors
- Click +, then Add custom connector
- Paste https://mcp.ganttchartmaker.app/mcp
- Sign in with Google, GitHub, or Microsoft when prompted
Connectors sync between claude.ai and the Desktop app. On Claude's free plan you can add one custom connector — this can be it. (Heads-up: Desktop's Settings → Extensions is a different feature — use Customize → Connectors.)
Claude Code (terminal)
Run once:
claude mcp add --scope user --transport http ganttchartmaker https://mcp.ganttchartmaker.app/mcp
Then approve the sign-in on first use.
Using another MCP client? Any client that speaks streamable-HTTP MCP with OAuth can connect with the same URL. You can also find these instructions in the app, under account menu → MCP Connection.
What Claude can do
| Tool | What it does |
|---|---|
list_charts | List the charts you own or collaborate on |
get_chart | Read a chart with all its tasks and events |
create_chart | Create a new, empty chart in your account |
add_task | Add tasks, groups, or milestones — dates, colors, priorities, nesting |
update_task | Change any field of an existing task |
delete_task | Remove a task (children and dependencies are cleaned up) |
link_tasks | Create dependencies — all four types (FS, SS, FF, SF) |
move_task | Reorder rows in the chart |
Things to try
"Create a Gantt chart for our website redesign with design, build, and QA phases."
"Add a two-week 'Content migration' task to my Marketing chart, starting Monday."
"Link 'Design' to 'Development' finish-to-start."
"What's on my Q3 roadmap chart? Anything overdue?"
Privacy & control
The connection uses standard OAuth — the app never sees or stores a password. Claude gets exactly the access you have: your own charts and charts shared with you, enforced server-side by row-level security. Cloud charts live in an EU-hosted database. Disconnect anytime from your Claude settings; details in the Privacy Policy.